1 files changed, 3 insertions, 3 deletions

diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 1ab3089b5c59..73edf5a52e31 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -148,9 +148,9 @@ enum {
 };
 
 extern int trace_define_common_fields(struct ftrace_event_call *call);
-extern int trace_define_field(struct ftrace_event_call *call, char *type,
-                              char *name, int offset, int size, int is_signed,
-                              int filter_type);
+extern int trace_define_field(struct ftrace_event_call *call, const char *type,
+                              const char *name, int offset, int size,
+                              int is_signed, int filter_type);
 extern int trace_add_event_call(struct ftrace_event_call *call);
 extern void trace_remove_event_call(struct ftrace_event_call *call);